Alessandro Mariani

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Questions related from Alessandro Mariani

What is the meaning of a positive deviation of viscosity?

I have a binary mixture of two molecules able to establish hydrogen bonds and with similar volume. One of the pure has a viscosity LARGELY lower than the other, so I would expect that adding the...

20 March 2017 5,878 4 View

How do I calculate the Partial Molar Volumes for a binary mixture of two co-solvents starting from its density?

I have a bunch of binary mixtures of two solvents (i.e. water and ethanol) of different composition, from water mol.frac. 0 to 1. For each of them I have the experimental density. Now I want to...

01 January 2017 4,163 3 View

What are the meanings of the Activation Energy and the pre-exponential factor in the Arrhenius law applied to Viscosity?

In the canonical use of the Arrhenius law (i.e. kinetics), the activation energy is related to the height of the reaction barrier and the pre-exponential factor is related to the probability of...

02 September 2016 7,765 6 View